Audible signal for alarm units



FIG. 1 is a perspective view of my an audible signal for alarm units.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a plan view thereof.

FIG. 4 is a bottom view plan thereof.

FIG. 5 is a right side elevation view thereof.

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a rear elevation view thereof. 

The ornamental design for an audible signal for alarm units, as shown and described. 